From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Allen Subject: Re: Multiple raids on one machine? Date: Mon, 26 Jun 2006 09:47:01 +0100 Message-ID: <449F9F05.8030001@cjx.com> References: <449F100D.6030509@cjx.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Gordon Henderson Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Gordon Henderson wrote: > I use option 2 (above) all the time, and I've never noticed any > performance issues. (not issues with recovery after a power failure) I'd > like to think that on a modern processor the CPU can handle the parity, > etc. calculations several orders of magnitude faster than the hardware can > chug data to & from the drives, so all it's really adding is a tiny bit of > latency... > > Thanks for this, and for the very informed responses from other subscribers. We have gone from 100GB of storage in May 2000 (which lasted us over a year) to 50TB today (which will last us three months), and a forecast of 200TB by this time next year! I'm learning fast :-)